Low NOx combustion: M38-8/125E-PDF

“Nitric oxide is the most important oxide of nitrogen formed in modern high-temperature boilers and, after emission, it will react with atmospheric oxygen to produce toxic nitrogen oxides. Atmospheric photochemical reactions between nitrogen oxides, oxygen, and hydrocarbons produce smog which reduces visibility and produces further reaction products including the lachrymatory peroxyacetyl nitrates. In high, concentrations, the smog products damage vegetation and aggravate human respiratory difficulties. Nitrogen dioxide (NO2) is more hazardous than carbon monoxide (CO) because it combines with haemoglobin and forms acids in the lungs. The advent of control legislation limiting the emission of nitric oxide will undoubtedly pose new problems for combustion engineers because high-temperature operation for maximum boiler efficiency inevitably increases the formation of nitric oxide. The objectives of this research program are to define the relevant combustion performance parameters than can be controlled or manipulated in such a manner as to minimize the formation of nitric oxide in flames"--Introd., p. 1-2.

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